Thiagarajan, US
Arvind Thiagarajan, San Jose, CA US
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20150297171 | SYSTEMS AND METHODS FOR ACOUSTICALLY OR ELECTRONICALLY MONITORING CHEST SOUNDS - The present invention relates to hybrid acoustic and electronic stethoscope. In one embodiment, the hybrid acoustic and electronic stethoscope includes a chest piece having a diaphragm, an acoustic selector, a microphone and a speaker. The microphone converts acoustic pressure signals from the diaphragm into corresponding electronic signals which can be outputted as processed acoustic signals via the speaker. The acoustic selector can select either the diaphragm or the speaker. A pair of binaurals is acoustically coupled to the acoustic selector via an acoustic conduit. In turn, the binaurals provides the acoustic pressure signals or the processed acoustic signals to a user. | 10-22-2015 |
20150304686 | SYSTEMS AND METHODS FOR IMPROVING QUALITY OF COLOR VIDEO STREAMS - A computerized system and method for enhancing video images including preprocessing of the video images to substantially maintain video quality at lower bit rates. Color video images are preprocessed by separating the color images into video components and passing each of the separated video components through corresponding convolution filters thereby creating corresponding separate filtered video components. The filtered video components are recombined into filtered video images and can be de-blocked thereby causing edges of the filtered video image to become crispier. The bit rate can be optimized to reduce distortion caused by the preprocessing and any previous compression. Appropriate inter-frame or intra-frame rates can be selected for target display screen sizes. | 10-22-2015 |
Arvind Thiagarajan, Mountain View, CA US
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20160139239 | DETERMINING DEVICE LOCATIONS USING MOVEMENT, SIGNAL STRENGTH - Techniques for precisely determining a location of a mobile computing device based on both wireless signal strengths measured at the mobile computing device and movement of the device. The wireless signal strengths may represent the strength of a connection between the device and wireless access points (WAPs), cellular towers, or the like. Furthermore, the techniques described herein may utilize movement data provided by the device. For instance, the device may include an accelerometer, a gyroscope, and/or any other components configured to recognize when a device is moving, a direction that the device is moving, or the like. In one example, the accelerometer reports when the device has moved by a certain amount, while the gyroscope reports a direction in which the device is moving. The techniques then utilize this information in addition to the wireless signal strengths to estimate locations of the device as the device moves over time. | 05-19-2016 |
Arvind Thiagarajan, Cambridge, MA US
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20100131545 | Distribution Data Items Within Geographically Distributed Databases - The subject matter disclosed herein relates to distribution data items within geographically distributed databases. | 05-27-2010 |
20150081583 | CONFIRMING DELIVERY LOCATION USING RADIO FINGERPRINTING - A system and method for confirming a delivery location. A delivery agent equipped with a device, for example, a mobile device, delivers a package to a location. When the package is delivered, the delivery agent triggers a delivery-event on the device, and in response to the delivery-event the device determines an RF fingerprint at the location. The RF fingerprint is stored, and a comparison of the RF fingerprint to previously stored RF fingerprints correlated to particular locations is performed. If the RF fingerprint determined by the first device corresponds to a previously stored RF fingerprint at the correct delivery location, the current delivery location is confirmed as correct. | 03-19-2015 |
Ashwin Thiagarajan, Irvine, CA US
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20080313725 | Computer system protection - Methods, systems, and computer program products for computer system protection are provided. Embodiments protect against unauthorized access to information on stolen and/or illegally transported computer systems. Embodiments include locking of functionalities within a computer system when the computer system moves outside a designated area. Embodiments include limiting access to functionalities within the computer system based on the location of the computer system. Embodiments of the present invention include allowing variable levels of access protection depending on the location of the computer system. | 12-18-2008 |
Balaji Thiagarajan, San Jose, CA US
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20150124698 | Adaptive Crowdsourced Keep-Alive Interval Determination - A system and method of determining a keep-alive interval for a network access point (AP) employs adaptive learning and crowd sourced data building to increase the effectiveness and efficiency of mobile device connectivity. In particular, in addition to allowing group accessed storage of resolved keep-alive intervals for specific APs, the disclosed principles provide a mechanism for resolving the keep-alive interval for any AP upon first encounter, allowing devices to maintain connectivity during a session without consuming bandwidth unnecessarily by sending superfluous keep-alive messages. | 05-07-2015 |
20150269370 | Biometric Authentication for Regulating Access to Content Sources Via a Client Device - A client device captures biometric data from a user and stores the biometric data to identify the user. To simplify access to content from a content source, the user identifies the content source to the client device, which identifies authentication information associated with the user by the content source. For example, the user specifies a username and password associated with the content source to the client device. The authentication information is stored in the client device using the user's biometric data. For example, the client device stores the authentication information so it is not accessible unless the client device receives the user's biometric data. When the user subsequently requests access to the content source, the user provides biometric data to the client device, which retrieves and communicates the authentication information to the content source. | 09-24-2015 |
Bhaskar Thiagarajan, Campbell, CA US
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20100105346 | METHOD TO DETECT INTERFERENCE IN WIRELESS SIGNALS - A method to detect interference in wireless signals, comprising sampling a received signal; identifying a dominant waveform in the received signal; subtracting the dominant waveform from the received signal to create a modified received signal; and repeating the above steps, recursively substituting the modified received signal for the received signal, until all adjusted reference waveforms have been subtracted. | 04-29-2010 |
20100105347 | APPARATUS TO DETECT INTERFERENCE IN WIRELESS SIGNALS - An apparatus to detect interference in wireless signals, comprising an antenna for receiving a wireless signal; and wherein the apparatus is operable to identify a dominant waveform in the received signal; subtract the dominant waveform from the received signal to create a modified received signal; and repeat the above steps, recursively substituting the modified received signal for the received signal, until all adjusted reference waveforms have been subtracted. | 04-29-2010 |
Bhuvaneswari Thiagarajan, Fremont, CA US
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20160070558 | ORCHESTRATION OF SOFTWARE APPLICATIONS UPGRADE USING CHECKPOINTS - Embodiments provide techniques for concurrently upgrading one or more software applications hosted by one or multiple hosts. Checkpoint data associated with the upgrade processes executing on the multiple hosts may be generated during the upgrade. The checkpoint data may be stored in a shared storage that can be accessed by the upgrade processes. Each upgrade process running on a host may be adapted to read checkpoint data from the shared storage and write checkpoint data only to a dedicated location on the shared storage. Checkpoint data written by a first upgrade process may be read by a second upgrade process to determine the status and/or progress of the first upgrade process on a given host. In this manner, the checkpoint data enable the multiple upgrade processes to synchronize with each other. | 03-10-2016 |
20160124741 | ORCHESTRATION OF SOFTWARE APPLICATIONS UPGRADE USING AUTOMATIC HANG DETECTION - In an upgrade infrastructure performing an overall upgrade operation comprising multiple upgrade processes being executed, possibly concurrently, on multiple hosts for upgrading one or more software applications hosted by hosts, automated hang detection mechanisms are disclosed for quickly, efficiently, and automatically detecting when one or more of the upgrade process are in a hang state. Different hang detection techniques are described including a metadata-driven hang detection mechanism and a code-driven hang detection mechanism. | 05-05-2016 |
Eashwar Thiagarajan, Bellevue, WA US
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20150349768 | PROGRAMMABLE SWITCHED CAPACITOR BLOCK - A first analog block includes a first plurality of switched capacitors and a second analog block includes a second plurality of switched capacitors. A switch associated with the first plurality of switched capacitors as well as a switch associated with the second plurality of switched capacitors may be configured based on one or more analog functions. The configuring of the first analog and the second analog block may include the configuring of the switch associated with the first plurality of switched capacitors when the analog function is associated with a first single ended signal and the configuring of both the switch associated with the first plurality of switched capacitors and the switch associated with the second plurality of switched capacitors when the analog function is associated with a differential signal | 12-03-2015 |
20160065216 | INTEGRATED CIRCUIT DEVICE WITH PROGRAMMABLE ANALOG SUBSYSTEM - An integrated circuit (IC) device can include a plurality of analog blocks, including at least one fixed function analog circuit, and at least one reconfigurable analog circuit block selected from: a continuous time (CT) block comprising a plurality of reconfigurable amplifier circuits and a discrete time block comprising amplifiers with a reconfigurable switch network; an analog multiplexer (MUX) configured to selectively connect any of a plurality of input/outputs (I/Os) of the IC device to the analog blocks, the analog MUX including at least one low noise signal path pair having a lower resistance than other signal paths of the analog MUX; at least one analog routing block reconfigurable to provide signal paths between any of the analog blocks; a digital section comprising digital circuits; and a processor interface coupled to the analog blocks. | 03-03-2016 |
20160118973 | PROGRAMMABLE SWITCHED CAPACITOR BLOCK - A first portion of a programmable switched capacitor block includes a first plurality of switched capacitors and a second portion of the programmable switched capacitor block includes a second plurality of switched capacitors. A first switch associated with the first plurality of switched capacitors as well as a second switch associated with the second plurality of switched capacitors may be configured based on a type of analog function that is to be provided. The configuring of the first analog and the second analog block may include the configuring of the first switch associated with the first plurality of switched capacitors when the analog function operates on a first single ended signal and the configuring of both the first and second switches when the analog function operates on a differential signal | 04-28-2016 |
Eashwar Thiagarajan, Bothell, WA US
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20080297388 | PROGRAMMABLE SIGMA-DELTA ANALOG-TO-DIGITAL CONVERTER - A system includes an analog-to-digital modulator to convert at least one analog input signal into at least one digital output signal. The system also includes a processing device to set an operational order and a quantization level of the analog-to-digital modulator. The analog-to-digital modulator converts the analog input signal into the digital output signal according to the operational order and the quantization level. | 12-04-2008 |
20110026519 | DYNAMICALLY RECONFIGURABLE ANALOG ROUTING CIRCUITS AND METHODS FOR SYSTEM ON A CHIP - An integrated circuit device may include a reconfigurable analog signal switching fabric comprising a plurality of global buses that are selectively connected to external pins by pin connection circuits in response to changeable analog routing data, and a plurality of local buses that are selectively connected to analog blocks and/or global buses by routing connection circuits in response to the analog routing data; and at least one processor circuit that executes predetermined operations in response to instruction data. | 02-03-2011 |
20110221504 | CONFIGURABLE SWITCHED CAPACITOR BLOCK - A configurable switched capacitor block includes a switched-capacitor (SC) sampling circuit, a fully differential amplifier, an SC feedback circuit, and a comparator. The SC sampling circuit is coupled to receive an input signal and to selectively generate a sampled signal to a differential input of the amplifier. The SC feedback circuit is coupled between the differential inputs and the differential outputs of the amplifier to selectively control a feedback of the amplifier. The comparator is coupled to the differential outputs of the amplifier to generate an output signal. The configurable switched capacitor block has multiple modes of operation which are selectable by programming the SC sampling circuit and the SC feedback circuit. | 09-15-2011 |
Giridhar Thiagarajan, Salt Lake City, UT US
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20140272232 | ANTITHROMBIC COATINGS AND USES THEREOF - Provided are multi-layer antithrombic coatings comprising an outermost layer of an antithrombic agent, such as a heparin conjugate, bound to a penultimate polymeric layer comprising cationic polymer species that is bound alternating polymeric layers comprising anionic polymer species and cationic polymer species, and uses thereof. | 09-18-2014 |
Jayaraman Jayaraman Thiagarajan, Dublin, CA US
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20160005170 | MEASURING GLOMERULAR NUMBER FROM KIDNEY MRI IMAGES - Measuring the number of glomeruli in the entire, intact kidney using non-destructive techniques is of immense importance in studying several renal and systemic diseases. In particular, a recent Magnetic Resonance Imaging (MRI) technique, based on injection of a contrast agent, cationic ferritin, has been effective in identifying glomerular regions in the kidney. In various embodiments, a low-complexity, high accuracy method for obtaining the glomerular count from such kidney MRI images is described. This method employs a patch-based approach for identifying a low-dimensional embedding that enables the separation of glomeruli regions from the rest. By using only a few images marked by the expert for learning the model, the method provides an accurate estimate of the glomerular number for any kidney image obtained with the contrast agent. In addition, the implementation of our method shows that this method is near real-time, and can process about 5 images per second. | 01-07-2016 |
20160005183 | KERNEL SPARSE MODELS FOR AUTOMATED TUMOR SEGMENTATION - A robust method to automatically segment and identify tumor regions in medical images is extremely valuable for clinical diagnosis and disease modeling. In various embodiments, an efficient algorithm uses sparse models in feature spaces to identify pixels belonging to tumorous regions. By fusing both intensity and spatial location information of the pixels, this technique can automatically localize tumor regions without user intervention. Using a few expert-segmented training images, a sparse coding-based classifier is learned. For a new test image, the sparse code obtained from every pixel is tested with the classifier to determine if it belongs to a tumor region. Particular embodiments also provide a highly accurate, low-complexity procedure for cases when the user can provide an initial estimate of the tumor in a test image. | 01-07-2016 |
Jaynth Thiagarajan, San Jose, CA US
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20130208874 | Multi-Channel End-to-End Hosted Call Recording System for IVR-Call Center Analytics - A telephone call is connected through a caller transfer point in a PSTN to a call recorder in a private hosted telephony network for making an audio recording of the telephone call. The telephone call is also connected from the caller transfer point through an IVR transfer point in the PTSN to a remote IVR server for dialog processing of the telephone call. At some point during the dialog process the connection between the call recorder and the IVR transfer point is placed on hold while maintaining a live connection between the call recorder and the caller transfer point. A human agent is then connected through the IVR transfer point to the telephone call for further handling of the telephone call, and the connection to between the IVR transfer point and the call recorder is restored to allow communication between the caller and the human agent. | 08-15-2013 |
Manoharan Thiagarajan, Milford, MI US
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20130338900 | NOX SENSOR PLAUSIBILITY MONITOR - A vehicle includes an engine, an exhaust system, and a controller. The exhaust system includes a selective catalytic reduction (SCR) device, and a rear nitrogen oxide (NOx) sensor. The controller, which is in communication with the NOx sensor, includes a processor and tangible, non-transitory memory. A plurality of data maps and a plurality of binary maps are recorded in memory. Each data map is indexed by a different pair of exhaust system performance values. Each cell of each data map is populated by estimated downstream NOx levels. The binary maps are indexed by one of the pairs of exhaust system performance values. Each cell of each binary map is populated by a binary value, i.e., a 0 or 1. The controller uses the data maps and the binary maps to execute a control action with respect to the exhaust system, such as verifying plausibility of the rear NOx sensor. | 12-19-2013 |
20140366515 | ENHANCED DIAGNOSTIC SIGNAL TO DETECT PRESSURE CONDITION OF A PARTICULATE FILTER - An exhaust gas treatment system includes a particulate filter to collect particulate matter from exhaust gas flowing therethrough. The particulate filter realizes a pressure thereacross in response to the exhaust gas flow. A delta pressure sensor determines a first pressure upstream from the particulate filter and a second pressure downstream from the particulate filter. A delta pressure module is in electrical communication with the delta pressure sensor. The delta pressure module determines a pressure differential value based on a difference between the first pressure and the second pressure and generates a diagnostic signal based on a plurality of the pressure differential values and a predetermined time period. | 12-18-2014 |
Naren Thiagarajan, San Francisco, CA US
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20140194095 | SYSTEM AND METHOD FOR MESSAGE IDENTIFICATION AND NOTIFICATION - A message identification and notification method is provided which includes detecting an incoming message from a first user to a mobile communication device corresponding to a second user. A particular indication in the incoming message is detected, and a notification is provided to the second user using the mobile communication device responsive to detecting the particular indication in the incoming message. One or more of an application and a functional component of the mobile communication device is disabled responsive to detecting the particular indication. A communication from the second user to the first user is detected, the communication initiated after the incoming message from the first user, and the one or more of the application and the functional component of the mobile communication device is enabled responsive to detecting the communication from the second user to the first user. A mobile communication device is also provided. | 07-10-2014 |
Narendan Thiagarajan, Emeryville, CA US
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20120322387 | SYSTEM FOR ANALYZING MOBILE BROWSER ENERGY CONSUMPTION - A system for measuring power consumption by a mobile device corresponding to access of web pages is provided. The system includes: the mobile device, configured to access web pages via a wireless network; a power measurement device connected to a battery of the mobile device, configured to measure parameters related to power consumption; and a server, in communication with the mobile device and the power measurement device, configured to control the mobile device's access of web pages and control the power measurement device's measurement of parameters, to receive measurements from the power measurement device, and to process the received measurements so as to correlate the mobile device's access of a web page with an amount of power consumed corresponding to the mobile device's access of the web page. | 12-20-2012 |
Prabhu Thiagarajan, Tucson, AZ US
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20090262767 | LIQUID COOLED LASER BAR ARRAYS INCORPORATING DIAMOND/COPPER EXPANSION MATCHED MATERIALS - A laser diode array having a plurality of diode bars bonded by a hard solder to expansion matched spacers and mounted on a gas or liquid cooled heatsink. The spacers are formed of a material such as copper/diamond composite material having a thermal expansion that closely matches that of the laser bars. | 10-22-2009 |
20100098121 | LIQUID COOLED LASER BAR ARRAYS INCORPORATING DIAMOND/COPPER EXPANSION MATCHED MATERIALS - A laser diode array having a plurality of diode bars bonded by a hard solder to expansion matched spacers and mounted on a gas or liquid cooled heatsink. The spacers are formed of a material such as copper/diamond composite material having a thermal expansion that closely matches that of the laser bars. | 04-22-2010 |
Prabhuram Thiagarajan, Tucson, AZ US
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20090168826 | Semiconductor lasers utilizing optimized n-side and p-side junctions - A semiconductor laser and a method of forming the same are provided. The n-side and p-side junctions are independently optimized to improve carrier flow. The material for the n-side cladding layer is selected to yield a small conduction to valance band gap offset ratio while the material for the p-side cladding layer is selected to yield a large conduction to valance band gap offset ratio. | 07-02-2009 |
Ramesh Thiagarajan, Plano, TX US
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20120114897 | Foam Stiffened Structure and Method of Making the Same - A structure includes a skin and a foam member. The foam member has a molded contour, the mold contour being configured to provide tooled surface for the skin. When the skin is a composite skin, the foam member provides support for the skin so that the skin can be cured under heat and pressure. A method of making the foam member for a foam stiffened structure includes creating a mold having an interior cavity which resembles a desired shape the foam member. A subsequent step involves introducing a foam mixture into the mold. Next, the foam mixture is allowed to polymerize so as to expand and distribute within the cavity of the mold. The method further includes selectively controlling a density of the foam member in the mold. The foam member is at least partially cured. The foam member is assembled with a skin to produce the foam stiffened structure. | 05-10-2012 |
20140115853 | Method of Repairing, Splicing, Joining, Machining, and Stabilizing Honeycomb Core Using Pourable Structural Foam and a Structure Incorporating the Same - A method of the present disclosure includes of repairing a core stiffened structure with structural foam. Another method includes splicing core members together using structural foam. Another method includes joining a core member to a structure using structural foam. Another method includes using structural foam to stabilize a core member during a machining process. Another method includes stabilizing a core member with structural foam to prevent the core member from crushing in autoclave pressure. The present disclosure further includes a core stiffened structure have a core member with structural foam therein. | 05-01-2014 |
20140119930 | Method of Repairing, Splicing, Joining, Machining, and Stabilizing Honeycomb Core Using Pourable Structural Foam and a Structure Incorporating the Same - A method of the present disclosure includes of repairing a core stiffened structure with structural foam. Another method includes splicing core members together using structural foam. Another method includes joining a core member to a structure using structural foam. Another method includes using structural foam to stabilize a core member during a machining process. Another method includes stabilizing a core member with structural foam to prevent the core member from crushing in autoclave pressure. The present disclosure further includes a core stiffened structure have a core member with structural foam therein. | 05-01-2014 |
20140120298 | Method of Repairing, Splicing, Joining, Machining, and Stabilizing Honeycomb Core Using Pourable Structural Foam and a Structure Incorporating the Same - A method of the present disclosure includes of repairing a core stiffened structure with structural foam. Another method includes splicing core members together using structural foam. Another method includes joining a core member to a structure using structural foam. Another method includes using structural foam to stabilize a core member during a machining process. Another method includes stabilizing a core member with structural foam to prevent the core member from crushing in autoclave pressure. The present disclosure further includes a core stiffened structure have a core member with structural foam therein. | 05-01-2014 |
20140120305 | Method of Repairing, Splicing, Joining, Machining, and Stabilizing Honeycomb Core Using Pourable Structural Foam and a Structure Incorporating the Same - A method of the present disclosure includes of repairing a core stiffened structure with structural foam. Another method includes splicing core members together using structural foam. Another method includes joining a core member to a structure using structural foam. Another method includes using structural foam to stabilize a core member during a machining process. Another method includes stabilizing a core member with structural foam to prevent the core member from crushing in autoclave pressure. The present disclosure further includes a core stiffened structure have a core member with structural foam therein. | 05-01-2014 |
Sairam P. Thiagarajan, Dunlap, IL US
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20100095653 | SYSTEM AND METHOD FOR HEATING A REDUCING AGENT ASSOCIATED WITH A REDUCING AGENT DISTRIBUTION SYSTEM - A system for heating a reducing agent associated with a reducing agent distribution system. The system may include a reducing agent containment device, a distribution device connected to the reducing agent containment device, and at least one heating component associated with the reducing agent containment device. A temperature sensor may be configured to determine a temperature of the reducing agent and may be disposed at least partially within the reducing agent containment device. A pressure sensor may be associated with the distribution device and configured to determine a pressure characteristic of the system. A controller may be configured to receive input from the temperature sensor and the pressure sensor and configured to send input to the at least one heating component based on the input received from the temperature sensor and the pressure sensor. | 04-22-2010 |
20100212290 | REDUCTANT DOSING SYSTEM HAVING ANTI-AERATION DEVICE - A reductant dosing system for a machine having an engine and an exhaust system is disclosed. The reductant dosing system has a tank configured to hold a reductant, a dosing arrangement, and a supply passage connecting the tank to the dosing arrangement. The reductant dosing system also has a purging arrangement configured to direct purge fluid to at least one of the dosing arrangement and the supply passage, and a valve configured to allow reductant to pass from the tank to the supply passage and to inhibit purge fluid from entering the tank. | 08-26-2010 |
Sairam Payyalore Thiagarajan, Dunlap, IL US
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20110232362 | DETECTION OF EXHAUST FILTER EFFECTIVENESS - A method and kit for determining the effectiveness of an exhaust filter. The method may involve exposing an indicator to an exhaust stream of a engine downstream of the exhaust filter, visually comparing the indicator against test samples, and assigning a level of exhaust filter effectiveness based on the comparison. The method may also involve restricting the exhaust stream, diverting a test stream of exhaust from the exhaust stream, and exposing the indicator to the test stream. The kit may include a collector having a housing defining a flow passage configured to transmit a test stream of exhaust from a engine and a restrictor having a orifice plate configured to restrict an exhaust stream from which the test stream is diverted. | 09-29-2011 |
Sashisekaran Thiagarajan, College Park, MD US
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20120014284 | VIRTUALIZED SHARED PROTECTION CAPACITY - The present disclosure relates a network, a network element, a system, and a method providing an efficient allocation of protection capacity for network connections and/or services. These may be for services within a given Virtual Private Network (VPN) or Virtual Machine (VM) instance flow. Network ingress/egress ports are designed to be VM instance aware while transit ports may or may not be depending on network element capability or configuration. A centralized policy management and a distributed control plane are used to discover and allocate resources to and among the VPNs or VM instances. Algorithms for efficient allocation and release of protection capacity may be coordinated between the centralized policy management and the distributed control plane. Additional coupling of attributes such as latency may provide more sophisticated path selection algorithms including efficient sharing of protection capacity. | 01-19-2012 |
Sashisekaran Thiagarajan, Columbia, MD US
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20090232497 | DIRECTIONLESS RECONFIGURABLE OPTICAL ADD-DROP MULTIPLEXER SYSTEMS AND METHODS - The present invention provides a directionless reconfigurable optical add/drop multiplexer (ROADM) system. The present invention provides a scalable all-optical switching element that includes a combination of 1×N wavelength selective switches (WSS), 1×N splitters/combiners, optical amplifiers, and tunable filters to provide a fully non-blocking solution which can be deployed in a scalable manner. The 1×N splitters are configured to split multiples copies of a plurality of drop wavelengths which can be amplified and sent to a tunable filter which selects out a particular wavelength for drop. The 1×N combiners are configured to combine multiple add wavelengths for egress transmission. | 09-17-2009 |
Shanmugavelu Thiagarajan, San Jose, CA US
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20090106587 | Software Recovery Method for Flash Media with Defective Formatting - A method and software program for recovering data from corrupted flash media. In one aspect, the method employs a low-level access scheme that enables data to be recovered when high-level interfaces, such as file systems, are damaged. The type of flash media is determined, and a corresponding access scheme is employed. Depending on the type of damage to the media, a physical-to-logical table may be built and employed to sequentially access the flash media in search of indicia from which selectable file-types can be identified, or the media may be accessed using normal operating system commands. Once the file indicia are found, the location of corresponding file data is identified, whereupon the file data are read and stored. The software program employs an application program interface (API) comprising one or more sets of pass-through commands to enable low-level access to the flash media and to build the physical-to-logical table. | 04-23-2009 |
Srikanth Thiagarajan, Tustin, CA US
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20110105930 | TRUE ECG MEASUREMENT DURING CARDIO PULMONARY RESUSCITATION BY ADAPTIVE PIECEWISE STITCHING ALGORITHM - A method and apparatus utilizing a piecewise stitching adaptive algorithm (PSAA) to filter signal artifacts, such as those induced by cardiopulmonary resuscitation (CPR) from sensed signals in real-time. PSAA is a method of estimating artifact component present in a first signal that is highly correlated with a second signal. The PSAA may utilize autocorrelation and cross-correlation calculations to determine signal sample windows in the first and second signals. The PSAA may estimate a signal artifact in a primary signal segment based on the determined correlations between the primary signal and an artifact signal. The PSAA may remove the estimated signal artifact from the primary signal. In the absence of an artifact signal, PSAA is able to estimate artifacts in the first signal utilizing filters. The PSAA may be implemented in Automated External Defibrillators, Monitor Defibrillators or other devices capable sensing highly correlated signals such as, for example, ECG and CPR signals. | 05-05-2011 |
20130282069 | CORRECTIVE PROMPTING SYSTEM FOR APPROPRIATE CHEST COMPRESSIONS - An automated external defibrillator (AED) and methods for a corrective CPR prompting system. The AED includes a sensor that obtains compression measurement data of CPR chest compressions and a control system including a microprocessor programmed to run a non-parametric, Information-Theoretic analysis of the compression measurement data. The analysis includes ranking provided compression measurement data, determining a prompt time T | 10-24-2013 |